Sash-support.



PATENTED DEC. 11, 1906.

//VVNTORI 0 2 Z75 y J 8 GRIBBON SASH SUPPORT.

APPLIOATIOH FILED NOV. 24, 1905.

UNITED STATES PATENT OFFICE.

JOHN SHYTH GRIBBON, OF BENALLA, VICTORIA, AUSTRALIA, ASSIGNOR OF ONE-HALF TO JAMES MOKEAN, OF BENALLA, AUSTRALIA.

SASH-SUPPORT.

Specification of Letters Patent.

Patented Dec. 1 1, 1906.

Application filed November 245, 1905. Serial No. 288,859.

To all whom, it TILCLZ/ concervt:

Be it known that I, JOHN SMYTH GRIBBON, a subject of the King of Great Britain and Ireland, residing at Lima East, Benalla, in the State of Victoria, Commonwealth of Australia, have invented certain new and useful Improvements in Sash-Supports and the Like; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to supports for sliding window-sashes and other structures, applied to which it enables them to be raised and lowered without using weights.

It is particularly'cheap, strong, and easy to regulate, and all parts are in full view when fitted in place. The device is attached inside to a lower sash at, when desired, one side only to take advantage of the friction and pressure then insured at the other side of the sash against the frame. The device has not to be let into the wood, and it may beapplied outside an upper sash.

The invention makes use of a spring, roller, and thumb-screw, while a shrouded or suit able ratchet and a pawl are also used in some cases. Spring devices have already been adopted by inventors; but in the present case the improved combination of parts enables the device to be fitted with special ease and at the same time easily adjusted in strength by an unskilled person.

In carrying the invention into effect a base-plate in the form of a bar having attaohment, as described below, is provided, and the first step is to secure the top of the said bar to the sash side at about the middle of the sashs height or at other suitable height and so that when the edge of a roller (hereinafter mentioned) rests against the window-frame the bar will project at an angle to the said frame for example, at forty-five degrees thereto. Then the said bar is used as a lever, and its lower end is forced to the sash side and there fastened, so that the bar is vertical, or nearly so.

The action of levering and fastening the base-plate into place causes the edge or the aforesaid roller, which is located at the free end of a bar-spring secured to the said plate,

to be pressed strongly into contact with the window-frame and puts strong pressure upon the spring. The sash may then be raised easily, the roller (mounted eccentrically or otherwise) turning but it will stay at the position to which it is raised owing to the pressure, or if that is not sufficient it is increased which the pawl is raised.

The invention is illustrated in (but is not limited to) the drawings herewith, in which Figure 1 is a front view of part of a sash and window-frame, showing the device as first partly attached to the sash. Fig. 2 is a side view of Fig. 1, omitting the eccentric optional mounting of the roller indicated by a dotted circle in Fig. 1. Fig. 3 is a front view showing the base-plate completely fixed to the sash, also showing the shrouded ratchet with pawl. Fig.4 is a plan view of the parts in Fig. 3, omitting ratchet and pawl, but showing an added guide-strip against which the roller may revolve instead of against the wood frame. In Figs. 2 to 4 some parts are shown in section.

In the figures, a indicates a window-pane fitted in sash I), and c the window-frame. Bar (Z is the base-plate, and e the bar-spring, set when not under pressure at an inclination to said plate and secured thereto by its lower end h.

f and 9 indicate end holes or means for fastening plate (1 to sash I); end g being fastened as in Fig. 1, powerful leverage being then gained by taking hold of end f and pressing it toward frame 0. This puts strong pressure upon the edge of roller 1' (which is journaled on the inturned upper end 2' of spring 6) and bends spring 6, as shown in Fig. 3.

j shows an outer and it an inner washer, 7c showing a form adapted to bear on plate (1.

A strip of metal or rubber or other suitable ICO The screw n is adjusted from time to time,

as required, to put more or less pressure on spring 6. i

In some cases roller r has its edge roughened or corrugated to give additional grip and is in some cases slightly eccentrically mounted upon its axle i, in which case the spring will yield, so as to allow the roller to turn when the sash is being raised, but, if properly adjusted, will lock the roller against turning to allow the sash to fall unless additional force is applied for the purpose of lowering it. Eccentric mounting of roller 1 relatively to axle i is shown in Fig. 1 only by a dotted circumferential line. No pawl is needed with the eccentric.

A resilient strip at Z or Z m, that would indent slightly under the roller-pressure, would afford additional support to prevent the sash falling from any height to which it had been raised. A resilient edge to the roller to meet frame 0 would act similarly. This device can, however, without using rubber or resilient material be made so powerful as to sup port heavy sashes. There is space available for the longest baseplate that it would be desirable to use and the stiflest and longest barspring, and the roller-axle may readily be lubricated at will.

The bar-spring need not be of the shape and location shown, provided its roller suiiiciently projects beyond the base-plate, so that the leverage of the latter into place puts the necessary pressure on the roller and spring.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is

1. In a sliding window-sash support or the like, an elongated base-plate d, an elongated flat spring-bar e, fixed at one end to one end of said plate with its edge toward the latter, said spring extending to a point close to the opposite end of said plate, a roller 7" mounted at the free end of said spring-bar and normally extending beyond the side of said plate, said plate having a hole g close to the roller 1", and substantially parallel with the axis thereof, said hole being adapted to receive a screw or the like around which said plate may be turned to place a pressure on the said spring.

2. In a sliding window-sash support or the like, an elongated base-plate d, an elongated flat spring-bar e,fixed at one end to one end of said plate, withits edge toward the latter, said spring extending to a point close to the opposite end of said plate, a roller 1' mounted at the free end of said spring-bar and normally extending beyond the side of said plate, said plate having a hole 9 close to the roller 1', and substantially parallel with the axis thereof, said hole being adapted to receive a screw or the like around which said plate may be turned to place a pressure on the said spring, and a thumb-screw n to adjust the pressure on said spring.

3. In a sliding window-sash support or the like, an elongated base-plate d, an elongated spring-bar e fixed at one end to one end of said plate, and adapted to be moved transversely across the latter, said spring extending to a point close to the opposite end of said plate, a roller 7* mounted .at the free end of said spring-bar and normally extending be yond the side of said plate, said plate having a hole 9 close to the roller 1", and substantially parallel with the axis thereof, said hole being adapted to receive a screw or the like around which said plate may be turned to place a pressure on the said spring, and a thumbscrew it to adjust the pressure on said spring, said roller having a series of shrouded teeth, and a pawl for engaging said teeth.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

JOHN SMYTH GRIBBON. WVitnesses:

GEORGE G. TURRI, ANTHONY J CALLINAN. 

